Developing communication skills in mathematics is an important part of school curriculum, and many standardized tests require written explanations on how math problems are solved. This book provides teachers strategies to engage students in math discussions, integrate the writing process, and assess their work. A writing checklist and a reflection page are also included. For students, there are opportunities to solve math problems and practice writing explanations on how the problems were solved. The activities focus on number sense and operations, geometry, measurement, and data analysis. A scoring rubric and answer key is also provided.